© Licensed to London News Pictures. 23/05/2016. London, UK. Commuters wait for a Piccadilly line train at King's Cross Underground station in London on 23 May 2016. The long-awaited 24-hour weekend service is officially announced to begin on 19 August 2016 on the Central and Victoria lines, with the Piccadilly, Jubilee and Northern to follow in the autumn. Photo credit: Tolga Akmen/LNP
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